mediawiki-extensions-Discus.../includes/Hooks.php
Ed Sanders 1c741d3450 Preserve a user's beta preference when not in beta
The tool may go in and out of beta as new features
are release/graduated to opt-out. Users should only
need to opt in to the beta feature once to get all
future sub-features.

Bug: T272071
Change-Id: If6834b7fc07fc7e84757dc5fdcea814cd0d65936
2021-01-14 23:46:47 +00:00

486 lines
16 KiB
PHP

<?php
/**
* DiscussionTools extension hooks
*
* @file
* @ingroup Extensions
* @license MIT
*/
namespace MediaWiki\Extension\DiscussionTools;
use Action;
use ConfigException;
use ExtensionRegistry;
use MediaWiki\MediaWikiServices;
use MWExceptionHandler;
use OutputPage;
use PageProps;
use RecentChange;
use RequestContext;
use Skin;
use Throwable;
use Title;
use User;
use VisualEditorHooks;
use WebRequest;
class Hooks {
private const TAGS = [
'discussiontools',
// Features:
'discussiontools-reply',
'discussiontools-edit',
'discussiontools-newtopic',
// Input methods:
'discussiontools-source',
'discussiontools-visual',
];
public static function onRegistration() : void {
// Use globals instead of Config. Accessing it so early blows up unrelated extensions (T255704).
global $wgLocaltimezone, $wgFragmentMode;
// HACK: Do not run these tests on CI as the globals are not configured.
if ( getenv( 'ZUUL_PROJECT' ) ) {
return;
}
// If $wgLocaltimezone isn't hard-coded, it is evaluated from the system
// timezone. On some systems this isn't guaranteed to be static, for example
// on Debian, GMT can get converted to UTC, instead of Europe/London.
// Timestamp parsing assumes that the timezone never changes.
if ( !$wgLocaltimezone ) {
throw new ConfigException( 'DiscussionTools requires $wgLocaltimezone to be set' );
}
// If $wgFragmentMode is set to use 'legacy' encoding, determining the IDs of our thread
// headings is harder, especially since the implementation is different in Parsoid.
if ( !isset( $wgFragmentMode[0] ) || $wgFragmentMode[0] !== 'html5' ) {
throw new ConfigException( 'DiscussionTools requires $wgFragmentMode to be set to ' .
"[ 'html5', 'legacy' ] or [ 'html5' ]" );
}
}
/**
* Check if a DiscussionTools feature is available to this user
*
* @param User $user
* @param string|null $feature Feature to check for: 'replytool' or 'newtopictool'.
* Null will check for any DT feature.
* @return bool
*/
private static function isFeatureAvailableToUser( User $user, ?string $feature = null ) : bool {
$services = MediaWikiServices::getInstance();
$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
if ( !$dtConfig->get( 'DiscussionToolsEnable' ) ) {
return false;
}
$optionsLookup = $services->getUserOptionsLookup();
// Feature-specific override
if ( $feature ) {
if ( $dtConfig->get( 'DiscussionTools_' . $feature ) !== 'default' ) {
// Feature setting can be 'available' or 'unavailable', overriding any BetaFeatures settings
return $dtConfig->get( 'DiscussionTools_' . $feature ) === 'available';
}
} else {
// Non-feature-specific override
if (
$dtConfig->get( 'DiscussionTools_replytool' ) === 'available' ||
$dtConfig->get( 'DiscussionTools_newtopictool' ) === 'available'
) {
return true;
}
}
// No feature-specific override found.
if ( $dtConfig->get( 'DiscussionToolsBeta' ) ) {
$betaenabled = $optionsLookup->getOption( $user, 'discussiontools-betaenable', -1 );
if ( $betaenabled !== -1 ) {
// betaenable doesn't have a default value, so we can check
// for it being unset like this. If the user has explicitly
// enabled or disabled it, we should immediatly return that.
return $betaenabled;
}
// Otherwise, being in the "test" group for this feature means
// it's effectively beta-enabled.
return self::determineUserABTestBucket( $user, $feature ) === 'test';
}
// Assume that if BetaFeature is turned off, or user has it enabled, that
// some features are available.
// If this isn't the case, then DiscussionToolsEnable should have been set to false.
return true;
}
/**
* Check if a DiscussionTools feature is enabled by this user
*
* @param User $user
* @param string|null $feature Feature to check for: 'replytool' or 'newtopictool'.
* Null will check for any DT feature.
* @return bool
*/
private static function isFeatureEnabledForUser( User $user, ?string $feature = null ) : bool {
$services = MediaWikiServices::getInstance();
$optionsLookup = $services->getUserOptionsLookup();
return static::isFeatureAvailableToUser( $user, $feature ) && (
// Check for a specific feature
( $feature && $optionsLookup->getOption( $user, 'discussiontools-' . $feature ) ) ||
// Check for any feature
( !$feature && (
$optionsLookup->getOption( $user, 'discussiontools-newtopictool' ) ||
$optionsLookup->getOption( $user, 'discussiontools-replytool' )
) )
);
}
/**
* Work out the A/B test bucket for the current user
*
* Checks whether the A/B test is enabled and whether the user is enrolled
* in it; if they're eligible and not enrolled, it will enroll them.
*
* @param User $user
* @param string|null $feature Feature to check for: 'replytool' or 'newtopictool'.
* Null will check for any DT feature.
* @return string 'test' if in the test group, 'control' if in the control group, or '' if they've
* never been in the test
*/
private static function determineUserABTestBucket( $user, $feature = null ) : string {
$services = MediaWikiServices::getInstance();
$optionsManager = $services->getUserOptionsManager();
$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
$abtest = $dtConfig->get( 'DiscussionToolsABTest' );
if (
!$user->isAnon() &&
( $abtest == 'all' || ( $feature && $abtest == $feature ) )
) {
// The A/B test is enabled, and the user is qualified to be in the
// test by being logged in.
$abstate = $optionsManager->getOption( $user, 'discussiontools-abtest' );
if ( !$abstate && $optionsManager->getOption( $user, 'discussiontools-editmode' ) === '' ) {
// Assign the user to a group. This is only being done to
// users who have never used the tool before, for which we're
// using the presence of discussiontools-editmode as a proxy,
// as it should be set as soon as the user interacts with the tool.
$abstate = $user->getId() % 2 == 0 ? 'test' : 'control';
$optionsManager->setOption( $user, 'discussiontools-abtest', $abstate );
$optionsManager->saveOptions( $user );
}
return $abstate;
}
return '';
}
/**
* Check if the tools are available for a given title
*
* @param Title $title
* @return bool
*/
private static function isAvailableForTitle( Title $title ) : bool {
// Only wikitext pages (e.g. not Flow boards)
if ( $title->getContentModel() !== CONTENT_MODEL_WIKITEXT ) {
return false;
}
$services = MediaWikiServices::getInstance();
$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
$props = PageProps::getInstance()->getProperties( $title, 'newsectionlink' );
$hasNewSectionLink = isset( $props[ $title->getArticleId() ] );
// Check that the page supports discussions.
// Treat pages with __NEWSECTIONLINK__ as talk pages (T245890)
return $hasNewSectionLink ||
// `wantSignatures` includes talk pages
$services->getNamespaceInfo()->wantSignatures( $title->getNamespace() );
// TODO: Consider not loading if forceHideNewSectionLink is true.
}
/**
* Check if the tool is available on a given page
*
* @param OutputPage $output
* @param string|null $feature Feature to check for: 'replytool' or 'newtopictool'.
* Null will check for any DT feature.
* @return bool
*/
private static function isFeatureEnabledForOutput( OutputPage $output, ?string $feature = null ) : bool {
// Don't show on edit pages, history, etc.
if ( Action::getActionName( $output->getContext() ) !== 'view' ) {
return false;
}
$title = $output->getTitle();
// Don't show on pages without a Title
if ( !$title ) {
return false;
}
// Don't show on mobile
if ( ExtensionRegistry::getInstance()->isLoaded( 'MobileFrontend' ) ) {
$mobFrontContext = MediaWikiServices::getInstance()->getService( 'MobileFrontend.Context' );
if ( $mobFrontContext->shouldDisplayMobileView() ) {
return false;
}
}
// ?dtenable=1 overrides all user and title checks
if (
$output->getRequest()->getVal( 'dtenable' ) ||
// Extra hack for parses from API, where this parameter isn't passed to derivative requests
RequestContext::getMain()->getRequest()->getVal( 'dtenable' )
) {
return true;
}
return static::isAvailableForTitle( $title ) && (
static::isFeatureEnabledForUser( $output->getUser(), $feature ) ||
// The cookie hack allows users to enable all features when they are not
// yet available on the wiki
$output->getRequest()->getCookie( 'discussiontools-tempenable' ) ?: false
);
}
/**
* Adds DiscussionTools JS to the output.
*
* This is attached to the MediaWiki 'BeforePageDisplay' hook.
*
* @param OutputPage $output
* @param Skin $skin The skin that's going to build the UI.
*/
public static function onBeforePageDisplay( OutputPage $output, Skin $skin ) : void {
$user = $output->getUser();
// Load modules if any DT feature is enabled for this user
if ( static::isFeatureEnabledForOutput( $output ) ) {
$output->addModuleStyles( [
'ext.discussionTools.init.styles'
] );
$output->addModules( [
'ext.discussionTools.init'
] );
$output->addJsConfigVars(
'wgDiscussionToolsFeaturesEnabled',
[
'replytool' => static::isFeatureEnabledForOutput( $output, 'replytool' ),
'newtopictool' => static::isFeatureEnabledForOutput( $output, 'newtopictool' ),
]
);
$services = MediaWikiServices::getInstance();
$optionsLookup = $services->getUserOptionsLookup();
$req = $output->getRequest();
$editor = $optionsLookup->getOption( $user, 'discussiontools-editmode' );
// User has no preferred editor yet
// If the user has a preferred editor, this will be evaluated in the client
if ( !$editor ) {
// Check which editor we would use for articles
// VE pref is 'visualeditor'/'wikitext'. Here we describe the mode,
// not the editor, so 'visual'/'source'
$editor = VisualEditorHooks::getPreferredEditor( $user, $req ) === 'visualeditor' ?
'visual' : 'source';
$output->addJsConfigVars(
'wgDiscussionToolsFallbackEditMode',
$editor
);
}
$dtConfig = $services->getConfigFactory()->makeConfig( 'discussiontools' );
$abstate = $dtConfig->get( 'DiscussionToolsABTest' ) ?
$optionsLookup->getOption( $user, 'discussiontools-abtest' ) :
false;
if ( $abstate ) {
$output->addJsConfigVars(
'wgDiscussionToolsABTestBucket',
$abstate
);
}
}
}
/**
* Set static (not request-specific) JS configuration variables
*
* @see https://www.mediawiki.org/wiki/Manual:Hooks/ResourceLoaderGetConfigVars
* @param array &$vars Array of variables to be added into the output of the startup module
* @param string $skinName Current skin name to restrict config variables to a certain skin
*/
public static function onResourceLoaderGetConfigVars( array &$vars, string $skinName ) : void {
$dtConfig = MediaWikiServices::getInstance()->getConfigFactory()
->makeConfig( 'discussiontools' );
$vars['wgDTSchemaEditAttemptStepSamplingRate'] =
$dtConfig->get( 'DTSchemaEditAttemptStepSamplingRate' );
$vars['wgDTSchemaEditAttemptStepOversample'] =
$dtConfig->get( 'DTSchemaEditAttemptStepOversample' );
}
/**
* OutputPageBeforeHTML hook handler
* @see https://www.mediawiki.org/wiki/Manual:Hooks/OutputPageBeforeHTML
*
* @param OutputPage $output The OutputPage object to which wikitext is added
* @param string &$text The HTML to be wrapped inside the #mw-content-text element
* @return bool
*/
public static function onOutputPageBeforeHTML( OutputPage $output, string &$text ) : bool {
// TODO: This is based on the current user, is there an issue with caching?
if ( !static::isFeatureEnabledForOutput( $output, 'replytool' ) ) {
return true;
}
$start = microtime( true );
try {
// Add reply links and hidden data about comment ranges.
$newText = CommentFormatter::addReplyLinks( $text, $output->getLanguage() );
} catch ( Throwable $e ) {
// Catch errors, so that they don't cause the entire page to not display.
// Log it and add the request ID in a comment to make it easier to find in the logs.
MWExceptionHandler::logException( $e );
$requestId = htmlspecialchars( WebRequest::getRequestId() );
$info = "<!-- [$requestId] DiscussionTools could not add reply links on this page -->";
$text .= "\n" . $info;
return true;
}
$text = $newText;
$duration = microtime( true ) - $start;
$stats = MediaWikiServices::getInstance()->getStatsdDataFactory();
$stats->timing( 'discussiontools.addReplyLinks', $duration * 1000 );
return true;
}
/**
* Handler for the GetPreferences hook, to add and hide user preferences as configured
*
* @param User $user
* @param array &$preferences
*/
public static function onGetPreferences( User $user, array &$preferences ) {
if ( static::isFeatureAvailableToUser( $user, 'replytool' ) ) {
$preferences['discussiontools-replytool'] = [
'type' => 'toggle',
'label-message' => 'discussiontools-preference-replytool',
'help-message' => 'discussiontools-preference-replytool-help',
'section' => 'editing/discussion',
];
}
if ( static::isFeatureAvailableToUser( $user, 'newtopictool' ) ) {
$preferences['discussiontools-newtopictool'] = [
'type' => 'toggle',
'label-message' => 'discussiontools-preference-newtopictool',
'help-message' => 'discussiontools-preference-newtopictool-help',
'section' => 'editing/discussion',
];
}
$preferences['discussiontools-showadvanced'] = [
'type' => 'api',
];
$preferences['discussiontools-abtest'] = [
'type' => 'api',
];
$dtConfig = MediaWikiServices::getInstance()->getConfigFactory()
->makeConfig( 'discussiontools' );
if (
!$dtConfig->get( 'DiscussionToolsEnable' ) ||
!$dtConfig->get( 'DiscussionToolsBeta' )
) {
// When out of beta, preserve the user preference in case we
// bring back the beta feature for a new sub-feature. (T272071)
$preferences['discussiontools-betaenable'] = [
'type' => 'api'
];
}
$preferences['discussiontools-editmode'] = [
'type' => 'api',
'validation-callback' => function ( $value ) {
return in_array( $value, [ '', 'source', 'visual' ], true );
},
];
}
/**
* Handler for the GetBetaPreferences hook, to add and hide user beta preferences as configured
*
* @param User $user
* @param array &$preferences
*/
public static function onGetBetaPreferences( User $user, array &$preferences ) : void {
$coreConfig = RequestContext::getMain()->getConfig();
$iconpath = $coreConfig->get( 'ExtensionAssetsPath' ) . '/DiscussionTools/images';
$dtConfig = MediaWikiServices::getInstance()->getConfigFactory()
->makeConfig( 'discussiontools' );
if (
$dtConfig->get( 'DiscussionToolsEnable' ) &&
$dtConfig->get( 'DiscussionToolsBeta' )
) {
$preferences['discussiontools-betaenable'] = [
'version' => '1.0',
'label-message' => 'discussiontools-preference-label',
'desc-message' => 'discussiontools-preference-description',
'screenshot' => [
'ltr' => "$iconpath/betafeatures-icon-DiscussionTools-ltr.svg",
'rtl' => "$iconpath/betafeatures-icon-DiscussionTools-rtl.svg",
],
'info-message' => 'discussiontools-preference-info-link',
'discussion-message' => 'discussiontools-preference-discussion-link',
'requirements' => [
'javascript' => true
]
];
}
}
/**
* Implements the ListDefinedTags and ChangeTagsListActive hooks, to
* populate core Special:Tags with the change tags in use by DiscussionTools.
*
* @param array &$tags Available change tags.
*/
public static function onListDefinedTags( array &$tags ) : void {
$tags = array_merge( $tags, static::TAGS );
}
/**
* Implements the RecentChange_save hook, to add an allowed set of changetags
* to edits.
*
* @param RecentChange $recentChange
* @return bool
*/
public static function onRecentChangeSave( RecentChange $recentChange ) : bool {
// only apply to api edits, since there's no case where discussiontools
// should be using the form-submit method.
if ( !defined( 'MW_API' ) ) {
return true;
}
$request = RequestContext::getMain()->getRequest();
$tags = explode( ',', $request->getVal( 'dttags' ) );
$tags = array_values( array_intersect( $tags, static::TAGS ) );
if ( $tags ) {
$recentChange->addTags( $tags );
}
return true;
}
}